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Add javascript function to wordpress page

I have a page that locates a link inside it and when that link is clicked it should save some data in database.
Besides, I have a file named "add.php" that communicates with the DB and operates well.
In my wordpress page I have added below codes for accessing the add.php file and send some parameters to it.
<a href="javascript:add(true);" >Click Me</a>
<script type="text/javascript">
function add(b){
$(document).ready(function(){
var result = $.ajax({
type: "POST",
url: "add.php",
data: { add: b }
});
result.done(function(msg) {
alert(msg);
});
result.fail(function(jqXHR, textStatus) {
alert( "No such data exists: " + textStatus );
});
});
}
</script>
I had this exact code in an html file and it worked smoothly. but it doesn't work on wordpress page like that.
Plus, the problem is that when I click the link -Click Me- it doesn't do anything.
please tell me where the problem is and how to solve it ?

I would recommend you to use this:
<a href="#" data-add="true" class='hitClick'>Click Me</a>
<!--use data* attributes to pass specific data -->
now in your function:
function add() {
event.preventDefault(); //<------make sure to add it.
var result = jQuery.ajax({
type: "POST",
url: "add.php",
data: {
add: jQuery(this).data('add')
}
});
result.done(function(msg) {
alert(msg);
});
result.fail(function(jqXHR, textStatus) {
alert("No such data exists: " + textStatus);
});
}
jQuery(document).ready(function(){
jQuery('.hitClick').on('click', add); // bind the click and use as callback
});

Updating div content after form submit without page reload

alright, I have a popup which displays some notes added about a customer. The content (notes) are shown via ajax (getting data via ajax). I also have a add new button to add a new note. The note is added with ajax as well. Now, the question arises, after the note is added into the database.
How do I refresh the div which is displaying the notes?
I have read multiple questions but couldn't get an answer.
My Code to get data.
<script type="text/javascript">
var cid = $('#cid').val();
$(document).ready(function() {
$.ajax({ //create an ajax request to load_page.php
type: "GET",
url: "ajax.php?requestid=1&cid="+cid,
dataType: "html", //expect html to be returned
success: function(response){
$("#notes").html(response);
//alert(response);
}
});
});
</script>
DIV
<div id="notes">
</div>
My code to submit the form (adding new note).
<script type="text/javascript">
$("#submit").click(function() {
var note = $("#note").val();
var cid = $("#cid").val();
$.ajax({
type: "POST",
url: "ajax.php?requestid=2",
data: { note: note, cid: cid }
}).done(function( msg ) {
alert(msg);
$("#make_new_note").hide();
$("#add").show();
$("#cancel").hide();
//$("#notes").load();
});
});
</script>
I tried load, but it doesn't work.
Please guide me in the correct direction.

Create a function to call the ajax and get the data from ajax.php then just call the function whenever you need to update the div:
<script type="text/javascript">
$(document).ready(function() {
// create a function to call the ajax and get the response
function getResponse() {
var cid = $('#cid').val();
$.ajax({ //create an ajax request to load_page.php
type: "GET",
url: "ajax.php?requestid=1&cid=" + cid,
dataType: "html", //expect html to be returned
success: function(response) {
$("#notes").html(response);
//alert(response);
}
});
}
getResponse(); // call the function on load
$("#submit").click(function() {
var note = $("#note").val();
var cid = $("#cid").val();
$.ajax({
type: "POST",
url: "ajax.php?requestid=2",
data: {
note: note,
cid: cid
}
}).done(function(msg) {
alert(msg);
$("#make_new_note").hide();
$("#add").show();
$("#cancel").hide();}
getResponse(); // call the function to reload the div
});
});
});
</script>

You need to provide a URL to jQuery load() function to tell where you get the content.
So to load the note you could try this:
$("#notes").load("ajax.php?requestid=1&cid="+cid);

Getting error on remove var data

I'm making hover card on click for every users so i did for one and its working but i want this to work on every user like i have given them unique title and based on that the server will get the data of that particular users but the problem is this is working on only 1 links not for all the links...maybe its because var data is kept store (please correct me if i'm wrong) so i tried to do this on ajax cache: false but didn't help then i tried return false;, return data; still not use.
So, here is the users links example :
<a class="hover" title="user101" href="#">John</a>
<a class="hover" title="user102" href="#">Tonya</a>
Ajax :
$(document).ready(function () {
$.ajaxSetup({
cache: false
});
$('.hover').click(function () {
var get_val = $('.hover').attr('title');
var data = 'vall=' + get_val + '';
$.ajax({
type: 'POST',
url: 'xx.php',
data: data,
success: function (data) {
box.dialog({
message: data
});
return false;
}
});
});
});

I would do it this way.
HTML
<div class='links'>
<a title="user101" href="#">John</a>
<a title="user102" href="#">Tonya</a>
</div>
JS
$(document).ready(function () {
$.ajaxSetup({
cache: false
});
$('.links').on('click', 'a', function (event) {
event.preventDefault();
var get_val = $(this).prop('title');
$.ajax({
type: 'POST',
url: 'xx.php',
data: {vall: get_val},
success: function (data) {
box.dialog({
message: data
});
}
});
});
});

the problem is this is working on only 1 links not for all the links...maybe its because var data is kept store (please correct me if i'm wrong)
you are wrong.. only 1 links is working beacuse you have same id for multiple elements.. each elements should have unique id.
use class instead
<a class="hover" title="user101" href="#">John</a>
<a class="hover" title="user102" href="#">Tonya</a>
and a class selector and return false after ajax success callback function , at the end
$('.hover').click(function () {
var get_val = $('.hover').attr('title');
....
$.ajax({
....
success:function(){
....
}
});
return false;
..
or simply use preventDefault() instead of return false
$('.hover').click(function (e) {
e.preventDefault();
var get_val = $('.hover').attr('title');
.....

AJAX request for many links

I'm new to jQuery AJAX. I want to build bookmarking system something like Twitter do (favorites). I have a lot of links. So it's not useful to write AJAX request for each link. That's why I want use just one request script for all links.
Let's say I have the links something link this:
<i class="icon-star-empty"></i>
<i class="icon-star"></i>
<i class="icon-star-empty"></i>
So I want to write AJAX request that do something like this when user clicks to one of those URLs.
if (class="icon-star-empty"){
ajaxURL = "/insertBoomark"
} else{
//it means class=icon-start
ajaxURL = "/deleteBookmark"
}
$.ajax({
url: ajaxURL,
type: "POST",
data: {id : linkID}, // I don't know how to get linkID too :(
success: if class was icon-star empty then change it to icon-star-empty else change it to icon-star
});
I know that is not correct syntax.
How can I solve this problem? Please help :(
Thanks in advance.

$("i").on("click", function() {
if ( $(this).hasClass("icon-star-empty") ){
ajaxURL = "/insertBoomark"
} else{
//it means class=icon-start
ajaxURL = "/deleteBookmark"
}
var linkID = $(this).parent().prop("id");
var obj = $(this);
$.ajax({
url: ajaxURL,
type: "POST",
data: {id : linkID},
success: function() {
obj.hasClass("icon-star") ? obj.removeClass("icon-star").addClass("icon-star-empty") : obj.removeClass("icon-star-empty").addClass("icon-star");
}
});
})

You can also use the href attribute and just prevent the default action from the jquery event.
html
javascript
$(function(){
$(document).on('click','a',function(e){
e.preventDefault(); //prevent default click action
var $this = $(this); // keeps "this" accessable
var ajaxURL = $this.attr('href'); // get the url from the "a" tag
$.ajax({
url: ajaxURL,
type: "POST",
data: {id : linkID},
success: function() {
if($this.hasClass("icon-star"))
$this.removeClass("icon-star").addClass("icon-star-empty");
else
$this.removeClass("icon-star-empty").addClass("icon-star");
}
});
});
});

$('a').click(function(){
var _ajaxURL,
_self = $(this);
if($(this).hasClass('icon-star-empty')){
_ajaxUrl = "/insertBookmark";
}else{
_ajaxUrl = "/deleteBookmark";
}
$.ajax({
url: _ajaxUrl,
type: 'POST',
data: {id : $(this).prop('id')},
success: {
//I have no idea what you want to do right here.
}
});
});

Okay, first, class is a reserved name in javascript.
Secondly, if you're doing it with a jQuery.click function, then you can just do $(this).attr('id') to get the id.
Also, for the success part, you seem to be confused about javascript's function syntax. What exactly are you trying to do?

Execute php url with JS

Is it possibe to simply load a php script with a url with js?
$(function() {
$('form').submit(function(e) {
e.preventDefault();
var title = $('#title:input').val();
var urlsStr = $("#links").val();
var urls = urlsStr.match(/\bhttps?:\/\/[^\s]+/gi);
var formData = {
"title": title,
"urls": urls
}
var jsonForm = JSON.stringify(formData);
$.ajax({
type: 'GET',
cache: false,
data: { jsonForm : jsonForm },
url: 'publishlinks/publish'
})
//load php script
});
});
Edit:
function index() {
$this->load->model('NewsFeed_model');
$data['queryMovies'] = $this->NewsFeed_model->getPublications();
$this->load->view('news_feed_view', $data);
}

simple
jQuery and:
<script>
$.get('myPHP.php', function(data) {});
</script>
Later edit:
for form use serialize:
<script>
$.post("myPHP.php", $("#myFormID").serialize());
</script>

like this ?
$.get('myPHP.php', function(data) {
$('.result').html(data);
alert('Load was performed.');
});

There are various ways to execute a server side page using jQuery. Every method has its own configuration and at the minimum you have to specify the url which you want to request.
$.ajax
$.ajax({
type: "Get",//Since you just have to request the page
url:"test.php",
data: {},//In case you want to provide the data along with the request
success: function(data){},//If you want to do something after the request is successfull
failure: function(){}, //If you want to do something if the request fails
});
$.get
$.get("test.php");//Simplest one if you just dont care whether the call went through or not
$.post
var data = {};
$.post("test.php", data, function(data){});
You can get the form data as a json object as below
var data = $("formSelector").searialize();//This you can pass along with your request